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Evaluating open-ended responses from large audio language models (LALMs) is challenging because human annotators often genuinely disagree on answer correctness due to multiple valid interpretations, partial correctness, and subjective…

Large vision-language models (LVLMs), which integrate a vision encoder (VE) with a large language model, have achieved remarkable success across various tasks. However, there are still crucial challenges in LVLMs such as object…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Hoigi Seo , Dong Un Kang , Hyunjin Cho , Joohoon Lee , Se Young Chun

Large Language Models (LLMs) demonstrate enhanced capabilities and reliability by reasoning more, evolving from Chain-of-Thought prompting to product-level solutions like OpenAI o1. Despite various efforts to improve LLM reasoning,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-05 Yuhao Dong , Zuyan Liu , Hai-Long Sun , Jingkang Yang , Winston Hu , Yongming Rao , Ziwei Liu

Multimodal large language models (MLLMs) suffer from pronounced hallucinations in remote sensing visual question-answering (RS-VQA), primarily caused by visual grounding failures in large-scale scenes or misinterpretation of fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Yi Liu , Jing Zhang , Di Wang , Xiaoyu Tian , Haonan Guo , Bo Du

Large Visual Language Models (LVLMs) integrate visual and linguistic modalities, exhibiting exceptional performance across various multimodal tasks. Nevertheless, LVLMs remain vulnerable to the issue of object hallucinations. Previous…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Chao Wang , Xuancheng Zhou , Weiwei Fu , Yang Zhou

Large Language Models (LLMs) often produce fluent but factually incorrect responses, a phenomenon known as hallucination. Abstention, where the model chooses not to answer and instead outputs phrases such as "I don't know", is a common…

Computation and Language · Computer Science 2025-11-24 Vy Nguyen , Ziqi Xu , Jeffrey Chan , Estrid He , Feng Xia , Xiuzhen Zhang

Multimodal large language models (MLLMs) often suffer from perceptual impairments under extended reasoning modes, particularly in visual question answering (VQA) tasks. We identify attention dispersion as the underlying cause: during…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Ruiying Peng , Xueyu Wu , Jing Lei , Lu Hou , Yuanzheng Ma , Xiaohui Li

We propose Reverse Contrast Attention (RCA), a plug-in method that enhances object localization in vision-language transformers without retraining. RCA reweights final-layer attention by suppressing extremes and amplifying mid-level…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Drandreb Earl O. Juanico , Rowel O. Atienza , Jeffrey Kenneth Go

Recent advancements in Large Language Models (LLMs) have catalyzed a paradigm shift from static prediction systems to agentic AI agents capable of reasoning, interacting with tools, and adapting to complex tasks. While LLM-based agentic…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Nima Fathi , Amar Kumar , Tal Arbel

A key trend in Large Reasoning Models (e.g., OpenAI's o3) is the native agentic ability to use external tools such as web browsers for searching and writing/executing code for image manipulation to think with images. In the open-source…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Ziyu Liu , Yuhang Zang , Yushan Zou , Zijian Liang , Xiaoyi Dong , Yuhang Cao , Haodong Duan , Dahua Lin , Jiaqi Wang

Multimodal large language models (MLLMs) have shown strong vision-language reasoning abilities but still lack robust 3D spatial understanding, which is critical for autonomous driving. This limitation stems from two key challenges: (1) the…

Artificial Intelligence · Computer Science 2025-09-09 Ruixun Liu , Lingyu Kong , Derun Li , Hang Zhao

Despite the significant success of Large Vision-Language models(LVLMs), these models still suffer hallucinations when describing images, generating answers that include non-existent objects. It is reported that these models tend to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Bin Li , Dehong Gao , Yeyuan Wang , Linbo Jin , Shanqing Yu , Xiaoyan Cai , Libin Yang

Pretrained vision-language models (VLMs) like CLIP exhibit exceptional generalization across diverse downstream tasks. While recent studies reveal their vulnerability to adversarial attacks, research to date has primarily focused on…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Wanqi Zhou , Shuanghao Bai , Danilo P. Mandic , Qibin Zhao , Badong Chen

Despite recent advancements in Multi-modal Large Language Models (MLLMs) on diverse understanding tasks, these models struggle to solve problems which require extensive multi-step reasoning. This is primarily due to the progressive dilution…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Byungwoo Jeon , Yoonwoo Jeong , Hyunseok Lee , Minsu Cho , Jinwoo Shin

Vision-Language Models (VLMs) excel at multimodal tasks, but they remain vulnerable to hallucinations that are factually incorrect or ungrounded in the input image. Recent work suggests that hallucination detection using internal…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Ryuhei Miyazato , Shunsuke Kitada , Kei Harada

Scoring the Optical Character Recognition (OCR) capabilities of Large Multimodal Models (LMMs) has witnessed growing interest. Existing benchmarks have highlighted the impressive performance of LMMs in text recognition; however, their…

We present ORCA (Omni Research on Calculation in AI) Benchmark - a novel benchmark that evaluates large language models (LLMs) on multi-domain, real-life quantitative reasoning using verified outputs from Omni's calculator engine. In 500…

Artificial Intelligence · Computer Science 2025-11-06 Claudia Herambourg , Dawid Siuda , Julia Kopczyńska , Joao R. L. Santos , Wojciech Sas , Joanna Śmietańska-Nowak

Despite the promise of Vision-Language-Action (VLA) models as generalist robotic controllers, their robustness against perceptual noise and environmental variations in out-of-distribution (OOD) tasks remains fundamentally limited by the…

Robotics · Computer Science 2026-03-30 Zhuoran Li , Zhiyang Li , Kaijun Zhou , Jinyu Gu

Given the higher information load processed by large vision-language models (LVLMs) compared to single-modal LLMs, detecting LVLM hallucinations requires more human and time expense, and thus rise a wider safety concerns. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Ruiyang Zhang , Hu Zhang , Zhedong Zheng

Object-aware reasoning in vision-language tasks poses significant challenges for current models, particularly in handling unseen objects, reducing hallucinations, and capturing fine-grained relationships in complex visual scenes. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Antonio Carlos Rivera , Anthony Moore , Steven Robinson